Parts for your 2001 Daihatsu Gran move-Drive belt pulley

2001 Daihatsu Gran Move drive-belt-pulley — purpose, checks, and servicing

Based on the Daihatsu M100/M110 Series (Pyzar/Gran Move) workshop manual and typical parts listings used in Australia and New Zealand (Gates Australia Micro-V/DriveAlign catalogues, Dayco application data, and Daihatsu EPC), the 2001 Daihatsu Gran Move is fitted with accessory drive-belt pulleys. The engine drives the alternator, power steering pump and, where fitted, the air-conditioning compressor via V-belts and associated pulleys, with the crankshaft pulley (harmonic balancer) acting as the primary drive. So a drive-belt-pulley is absolutely relevant to this model.

On a 2001 Gran Move, the drive-belt pulley system does the heavy lifting of transferring the crankshaft’s rotation to the alternator, power steering and A/C. The crank pulley (often a damped, two-piece balancer) leads the show, while accessory pulleys spin up their components, and an adjustable or idler pulley keeps belt tension in check. If those pulleys are worn, misaligned or rough, the belt suffers and so do your electrics, steering assist and cabin cooling.

For servicing, it’s smart to check pulley condition at every service and definitely whenever a new belt goes on. Under the bonnet, look and listen for:

• Wobble or visible runout at idle.
• Chirps, squeals or a dry, metallic rumble from bearings.
• Cracked or perished rubber on the crank harmonic balancer.
• Belt edge fraying or glazing (often a sign of misalignment).

If a pulley’s bearing feels gritty or has play when spun by hand (belt off), replace it. Many Gran Moves use separate belts (alternator/PS and A/C), with manual adjustment on the accessory or a dedicated idler. Don’t overtighten—too much tension can cook bearings. Use the workshop manual’s deflection/force spec and recheck tension after a short run-in.

When doing a belt service, consider the “belt-and-pulley” approach:

1. Inspect all pulleys, replace noisy or worn idlers/tensioners along with the belt.
2. Check alignment with a straight-edge, correct any bracket or mounting issues.
3. If the crank pulley’s rubber bond is cracked, wavy or oil-soaked, fit a new harmonic balancer.
4. Torque fasteners to spec and use the proper holding tool for the crank pulley—no shortcuts.

Intervals vary by use and climate, but in Aussie and Kiwi conditions many techs recheck belts and pulleys every 10,000–15,000 km, replacing belts around 60,000–100,000 km or earlier if noisy or cracked. Given the Gran Move’s age, proactive pulley and belt refresh pays off with quieter running, better charging and lighter steering.

Popular questions about 2001 Daihatsu Gran Move drive-belt-pulley

Does the 2001 Gran Move use one serpentine belt or separate belts?
Most Gran Move/Pyzar variants run separate V-belts: one for the alternator/power steering and another for the A/C if fitted. That means multiple pulleys and, on some setups, an adjustable idler for tension. Always check the specific engine variant and accessories on the vehicle.

How can someone tell if the crankshaft pulley (harmonic balancer) is failing?
Look for a wobble at idle, rubber delamination between the hub and outer ring, or a rhythmic rumble. A failing balancer can cause belt walk, vibration and charging issues. If any of these show up, replacement is the safest bet.

Should pulleys be replaced with the belt every time?
Not always, but it’s good practice to replace any pulley that’s noisy, rough, misaligned or leaking grease. On higher‑kilometre Gran Moves, doing belts and suspect pulleys together saves time and avoids repeat labour.